FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/react-native/Libraries/Components/UnimplementedViews/UnimplementedNativeViewNativeComponent.js

@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ */
+
+export * from '../../../src/private/specs_DEPRECATED/components/UnimplementedNativeViewNativeComponent';
+export {default} from '../../../src/private/specs_DEPRECATED/components/UnimplementedNativeViewNativeComponent';

node_modules/react-native/Libraries/Components/UnimplementedViews/UnimplementedView.js

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow strict-local
+ * @format
+ */
+
+'use strict';
+import type {ViewStyleProp} from '../../StyleSheet/StyleSheet';
+
+import StyleSheet from '../../StyleSheet/StyleSheet';
+import * as React from 'react';
+
+type Props = Readonly<{
+  style?: ?ViewStyleProp,
+  children?: React.Node,
+  ...
+}>;
+
+/**
+ * Common implementation for a simple stubbed view. Simply applies the view's styles to the inner
+ * View component and renders its children.
+ */
+class UnimplementedView extends React.Component<Props> {
+  render(): React.Node {
+    // Workaround require cycle from requireNativeComponent
+    const View = require('../View/View').default;
+    return (
+      <View style={[styles.unimplementedView, this.props.style]}>
+        {this.props.children}
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  unimplementedView: __DEV__
+    ? {
+        alignSelf: 'flex-start',
+        borderColor: 'red',
+        borderWidth: 1,
+      }
+    : {},
+});
+
+export default UnimplementedView;